WM8993 datasheet(22/229 Pages) WOLFSON

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WM8993

Production Data

PD, November 2010, Rev 4.0

Test Conditions

DCVDD = 1.2V, AVDD2 = DBVDD = CPVDD = 1.8V, AVDD1 = 3.0V, SPKVDD = 5V, DGND=AGND=CPGND=SPKGND=0V,

TA = +25

oC, 1kHz sinusoidal signal, fs = 48kHz, PGA gain = 0dB, 24-bit audio data unless otherwise stated.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Multi-Path Channel Separation

Headset Voice Call:

DAC/Headset to Tx Voice

Separation

1kHz 0dBFS DAC playback direct

to HPOUT1L and HPOUT1R;

Quiescent input on IN1LN/P or

IN1RN/P (Gain=+12dB),

differential line output; Measure

crosstalk at differential line output

Headset Voice Call:

DAC/Speaker to Tx Voice

Separation

1kHz 0dBFS DAC playback to

speakers, 1W/chan output;

Quiescent input on IN1LN/P or

IN1RN/P (Gain=+12dB),

differential line output; Measure

crosstalk at differential line output

100

Earpiece PCM Voice Call:

RXVOICE to Tx Voice Separation

fs=8kHz for ADC and DAC,

DAC_SB_FILT=1; -5dBFS, DAC

output to HPOUT2P-HPOUT2N;

Quiescent input on input PGA

(Gain=+12dB) to ADC via MIXINL

or MIXINR; Measure crosstalk at

ADC output

110

Speakerphone PCM Voice Call:

DAC/Speaker to ADC Separation

fs=8kHz for ADC and DAC,

DAC_SB_FILT=1; 0dBFS DAC

output to speaker (1W output);

ADC record from input PGA

(Gain=+30dB); Measure crosstalk

on ADC output

Speakerphone PCM Voice Call:

ADC to DAC/Speaker Separation

fs=8kHz for ADC and DAC,

DAC_SB_FILT=1; Quiescent DAC

output to speaker; ADC record

from input PGA (Gain=+30dB +

30dB boost); Measure crosstalk

on speaker output

WM8993 Datasheet(PDF) 22 Page - Wolfson Microelectronics plc

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